Chen, W. , Liu, C. , Yang, Y. and Tian, L. 2021. The effect of transcutaneous electrical nerve stimulation (TENS) on pain control and phenylethanolamine-N-methyltransferase (PNMT) gene expression after cesarean section. Cellular and Molecular Biology. 67, 3 (Nov. 2021), 153–157. DOI:https://doi.org/10.14715/cmb/2021.67.3.23.